The niece, lost in her own world, doesn't notice her uncle until he clears his throat, startling her. Embarrassed but intrigued, she covers herself, but not before he's seen her excitement. He steps in, joining her in the shower, his erection evident. She hesitates, then reaches out, tentative yet eager, wrapping her fingers around his throbbing cock. He groans, guiding her hand, teaching her how to pleasure him. The water cascades around them, their bodies pressed close, as they explore their forbidden desires.